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addet - add the E-terms to a pre IAU 1976 mean place
afin - convert a sexagesimal character string to radians (s.p.)
airmas - compute the airmass at a given zenith distance
altaz - compute altazimuth positions, velocities, accelerations
amp - convert a geocentric apparent to post IAU 1976 mean place
ampqk - convert a geocentric apparent to post IAU 1976 mean place
aop - convert an apparent to observed place
aoppa - pre-compute the set of apparent to observed place parameters
aoppat - recompute the apparent to observed place sidereal time parameter
aopqk - convert an apparent to observed place
atmdsp - apply atmospheric dispersion terms to refraction coefficients
av2m - compute a rotation matrix from an axial vector (s.p.)
bear - compute the bearing of a point on a sphere w.r.t. another
caf2r - convert degrees, arcminutes, and arcseconds to radians
caldj - convert a Gregorian calendar date to a modified Julian date
calyd - convert a Gregorian calendar date to a Julian calendar year, day
cc2s - convert Cartesian to spherical coordinates (s.p.)
cc62s - convert a 6-vector from Cartesian to spherical coordinates
cd2tf - convert an interval in days to hours, minutes, and seconds
cldj - convert a Gregorian calendar date to a modified Julian date
clyd - convert a Gregorian calendar date a Julian calendar year, day
cr2af - convert radians to degrees, arcminutes, and arcseconds
cr2tf - convert radians to hours, minutes, and seconds
cs2c - convert spherical to Cartesian coordinates (s.p.)
cs2c6 - convert spherical position/velocity to Cartesian coordinates
ctf2d - convert hours, minutes, and seconds to days
ctf2r - convert hours, minutes, and seconds to radians
daf2r - convert degrees, arcminutes, and arcseconds to radians (d.p)
dafin - convert a sexagesimal character string to radians (d.p.)
dat - compute difference between TAI and UTC in seconds
dav2m - compute a rotation matrix from an axial vector (d.p)
dbear - compute the bearing of a point on a sphere w.r.t. another (d.p.)
dbjin - convert a character string to a Besselian/Julian epoch
dc62s - convert Cartesian position/velocity to spherical coordinates (d.p.)
dcc2s - convert Cartesian to spherical coordinates (d.p)
dcmpf - convert linear fit coefficients to geometric parameters
dcs2c - convert spherical to Cartesian coordinates (d.p)
dd2tf - convert interval in days to hours, minutes, and seconds (d.p.)
de2h - convert hour angle and declination to azimuth and elevation (d.p.)
deuler - convert Euler angles to a rotation matrix (d.p.)
dfltin - convert a character string to a floating point number (d.p.)
dh2e - convert azimuth and elevation to hour angle and declination (d.p.)
dimxv - apply a 3D reverse rotation to a 3-vector (d.p.)
djcal - convert an MJD to a Gregorian calendar date
djcl - convert an MJD to a Gregorian year, month, and day
dm2av - convert a rotation matrix to an axial vector (d.p)
dmat - solve a set of simultaneous equations (d.p.)
dmoon - compute approximate geocentric position/velocity of moon (d.p.)
dmxm - compute the product of two 3X3 matrices (d.p.)
dmxv - multiple a 3-vector by a rotation matrix (d.p.)
dpav - compute the bearing of a point on a sphere w.r.t. another (d.p.)
dr2af - convert radians to degrees, arcminutes, and arcseconds (d.p)
dr2tf - convert radians to hours, minutes, and seconds (d.p.)
drange - normalize an angle to the range -pi <= angle <= pi (d.p.)
dranrm - normalize an angle to the range 0 <= angle <= 2pi (d.p.)
ds2c6 - convert spherical position/velocity to Cartesian coordinates (d.p.)
ds2tp - project spherical coordinates onto the tangent plane (d.p)
dsep - compute the angle between two points on a sphere (d.p.)
dt - estimate the approximate difference between ET and UT in seconds
dtf2d - convert hours, minutes, and seconds to days (d.p)
dtf2r - convert hours, minutes, and seconds to radians (d.p.)
dtp2s - convert tangent plane to spherical coordinates (d.p.)
dtp2v - convert tangent plane coordinates to direction cosines (d.p.)
dtps2c - compute the spherical coordinates of the tangent point (d.p.)
dtpv2c - compute the direction cosines of the tangent point (d.p.)
dtt - compute the difference between TT and UTC in seconds
dv2tp - convert direction cosines to tangent plane coordinates (d.p)
dvdv - compute the scalar product of 2 3-vectors (d.p.)
dvn - normalize a 3-vector and compute the modulus (d.p.)
dvxv - compute the vector product of 2 3-vectors (d.p.)
e2h - convert hour angle and declination to azimuth and elevation (d.p.)
earth - compute approximate heliocentric position/velocity of earth
ecleq - convert from ecliptic to equatorial FK5 coordinates
ecmat - compute the equatorial FK5 to ecliptic coordinates rotation matrix
ecor - compute rv of earth and time correction to sun in given direction
eg50 - convert equatorial FK4 to IAU 1958 galactic coordinates
el2ue - convert osculating orbital elements into universal form
epb - convert an MJD to a Besselian epoch
epb2d - convert a Besselian epoch to an MJD
epco - convert a Besselian/Julian epoch to match a given epoch
epj - convert an MJD to a Julian epoch
epj2d - convert a Julian epoch to an MJD
eqecl - convert equatorial FK5 to ecliptic coordinates
eqeqx - compute the equation of the equinoxes
eqgal - convert equatorial FK5 to IAU 1958 galactic coordinates
etrms - compute the E-terms vector
euler - convert Euler angles to a rotation matrix (s.p.)
evp - compute the barycentric/heliocentric velocity/position of earth
fitxy - fit a linear model to 2 sets of [x,y] coordinates
fk425 - convert equatorial FK4 to FK5 coordinates
fk45z - convert equatorial FK4 to FK5 coordinates excluding proper motion
fk524 - convert equatorial FK5 to FK4 coordinates
fk54z - convert equatorial FK5 to FK4 coordinates excluding proper motion
fk52h - convert equatorial FK5 to ICRS coordinates
fk5hz - Convert equatorial FK5 to ICRS coordinates (0 ICRS proper motions)
flotin - convert a character string to a floating point number
galeq - convert IAU 1958 galactic to equatorial FK5 coordinates
galsup - convert IAU 1958 galactic to deVaucouleurs supergalactic coordinates
ge50 - convert IAU 1958 galactic to equatorial FK4 coordinates
geoc - convert geodetic to geocentric position
gmst - convert from UT1 to GMST
gmsta - convert from UT1 to GMST while minimizing rounding errors
h2e - convert azimuth and elevation to hour angle and declination (s.p.)
h2fk5 - Convert equatorial ICRS to FK5 coordinates
hfk5z - Convert equatorial ICRS to FK5 coordinates (0 ICRS proper motions)
imxv - apply a 3D reverse rotation to a 3-vector (s.p.)
intin - convert a character string into an integer
invf - invert the linear model computed from 2 sets of [x,y] coordinates
kbj - select the epoch prefix B or J
m2av - convert a rotation matrix to an axial vector (s.p.)
map - convert a post IAU 1976 mean to geocentric apparent place
mappa - precompute the set of mean to geocentric apparent place parameters
mapqk - convert a post IAU 1976 mean to geocentric apparent place
mapqkz - convert a post IAU 1976 mean to geocentric apparent place
moon - compute approximate geocentric position/velocity of moon
mxm - compute the product of two 3X3 matrices (s.p.)
mxv - multiply a 3-vector by a rotation matrix (s.p.)
nut - compute the nutation matrix for a given date
nutc - compute the nutation components for a given date
oap - convert from observed to apparent place
oapqk - convert from observed to apparent place
obs - look up an entry in a list of groundbased observing stations
pa - compute the parallactic angle from the hour angle and declination
pav - compute the bearing of a point on a sphere w.r.t. another
pcd - apply pincushion/barrel distortion to tangent plane coordinates
pda2h - compute the hour angle corresponding to a given azimuth
pdq2h - compute the hour angle corresponding to a given parallactic angle
pertel - update osculating orbital elements by applying perturbations
pertue - update universal elements by applying perturbations
planel - compute the approximate heliocentric position/velocity of a planet
planet - compute the approximate heliocentric position/velocity of a planet
plante - compute approximate topocentric apparent position of a planet
pm - apply the correction for proper motion to a star
polmo - correct site longitude and latitude for polar motion
prebn - compute the FK4 matrix of precession between two epochs
prec - compute the FK5 matrix of precession between two epochs
preces - precess coordinates in either the FK4 or FK5 systems
precl - compute the longterm matrix of precession between two epochs
precss - precess coordinates in either the FK4 or FK5 systems
prenut - compute the FK5 matrix of precession and nutation
pv2el - convert J2000 position and velocity to osculating elements
pv2ue - convert instantaneous position and velocity to universal element set
pvobs - compute the geocentric position / velocity of an observing station
pxy - apply a linear model to a set of expected and measured [x,y]
range - normalize an angle to the range -pi <= angle <= pi (s.p.)
ranorm - normalize an angle to the range 0 <= angle <= 2pi (s.p.)
rcc - compute the difference between TDB and TT in seconds
rdplan - compute approximate topocentric apparent position of a planet
refco - compute the refraction coefficients
refcoq - compute the refraction coefficients (fast version)
refro - compute the atmospheric refraction for optical and radio wavelengths
refv - apply the refraction correction to a Cartesian 3-vector
refz - apply the refraction correction to a zenith distance
rverot - compute the earth rotation velocity component in a given direction
rvgalc - compute the dynamical LSR velocity component in a given direction
rvlg - compute the solar velocity component in a given direction
rvlsrd - compute the peculiar solar velocity component in a given direction
rvlsrk - compute the standard solar velocity component in a given direction
s2tp - project spherical coordinates onto the tangent plane (s.p.)
sep - compute the angle between two points on a sphere (s.p.)
smat - solve a set of simultaneous equations (s.p.)
subet - remove the E-terms from a pre IAU 1976 catalog position
supgal - convert deVaucouleurs supergalactic to IAU 1958 galactic coordinates
svd - compute the SVD factorization of a matrix
svdcov - compute the covariance matrix from the SVD factorization
svdsol - solve a set of simultaneous equations using SVD factorization
tp2s - convert tangent plane to spherical coordinates (s.p.)
tp2v - convert tangent plane coordinates to direction cosines (s.p.)
tps2c - compute the spherical coordinates of the tangent point (s.p.)
tpv2c - compute the direction cosines of the tangent point (s.p.)
ue2el - convert universal elements into heliocentric osculating elements
ue2pv - compute heliocentric position and velocity from universal form
unpcd - remove pincushion/barrel distortion from distorted coordinates
v2tp - convert direction cosines to tangent plane coordinates (s.p.)
vdv - convert the scale production of two 3-vectors (s.p.)
vn - normalize a 3-vector and compute the modulus (s.p.)
vxv - compute the vector product of two 3-vectors (s.p.)
xy2xy - apply a computed linear model to a set of [x,y]
zd - convert hour angle and declination to zenith distance
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